Finding the Fourth Proportional to 12,419.24, 17,138.76 and 7,114.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.24 : 17,138.76 = 7,114.52 : x
2. Step 2: Convert to fraction form
   12,419.24/17,138.76 = 7,114.52/x
3. Step 3: Cross multiply
   12,419.24x = 17,138.76 × 7,114.52
4. Step 4: Simplify right side
   12,419.24x = 121,934,050.80
5. Step 5: Solve for x
   x = 121,934,050.80/12,419.24
6. Step 6: Final answer
   x = 9,818.16